{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["process characterization", "machine or equipment", "enabling technology", "machanical property", "process parameter", "manufacturing process"], "input": "A comparison of keyhole and heat conduction laser welding was performed ."}
{"process characterization": [], "machine or equipment": [], "enabling technology": [], "machanical property": [], "process parameter": [], "manufacturing process": ["welding"]}